Last updated: October 15, 2017 at 23:47 pm
A polynya is an area of open water surrounded by sea ice. The Weddell Polynya in the Southern Ocean had a record surface area of 350,000 sq km during the austral winters from 1974 to 1976. In the Arctic Ocean, the surface area of a polynya known as the North Water, or Pikialasorsuaq in Greenlandic, extends up to 85,000 sq km (33,000 sq mile) between Canada’s Baffin Island and Greenland every summer.
Lewis, E. L.; et al. (1996). Springtime sensible heat, nutrients and phytoplankton in the Northwater Polynya, Canadian Arctic. Cont. Shelf Res. 16: 1775–1792.
Comments are moderated: (1) Stay on topic (2) Be respectful (3) Refrain from vulgarity and abusive language (4) Do not publish materials that violate copyright. OFFENDING COMMENTS WILL BE DELETED.
Jeffrey Gallant is the Editor-in-Chief and Records Keeper of the Diving Almanac. He is also a contributing editor of DIVER Magazine, and the scientific director of the Greenland Shark and Elasmobranch Education and Research Group (GEERG). Jeffrey started diving in 1982.